Brush.



1. T. LORD.

BRUSH. f'

Patented May 9,1916.

W4 TTORNEY.

WITNESS Lisanne.

Vso

JOHN T. LORD, OF LAWRENCE, MASSACHUSETTS, ASSIGNGR T0 PACIFIC MILLS, OF LWRENCE, MASSACHUSETTS, EL CEOEArJON rauen.

Speecati'oniof Letters Eatent.

. Patented allay el, loro.

To all whom t may concern Be-it known that l, JOHN T. LORD, a citizen of the United States, residing at Lawrence, in the county of kEsser; and State ot Massachusetts, have invented certain new and useful Improvements in Brushes, of which the following is a specification.

My invention relates to brushes of the type wherein tufts otbristles are held in place in bristle holes in a bristle block by means of staples. Such brushes have been inadewith holes which. enter but do not'pass through a block of material into which staples may be driven, and they have. been made with such holes vin material whichr is so hard that the staples will not enterit but will be upset or bent so as tobear against the sides of the holesor to enter recesses therein. Brushes have also been made in two parts one being a bristle bloclrthrough which bristle holes are made, in association with another block attached thereto into which the staples are driven.

Brush stapling machines for lling and refilling brushes with bristles such as are known as the Liebiglilling machines have been used a great many years and it is for use with such machines that l have devised my novel brush. i'

My brush comprises a bristle-block whichv is preferably of hard, durable material having a plurality of holes which extend therethrough vfrom front to back. Each holeis adapted to receive a tutt of bristles vfrom the front together with the staple which is to hold the tuft, and has medially therein a'st'op,A such as an annular shoulder, which may be square or, tapering o/r ari/'annular rim. A. removable plugof /relatively soft material into which av staple can be driven V is placed or preferably driven from vthe back into each hole up against ythe stop 1 or f shoulder therein and into each ot theseplugs is driven a staple holdingl a 'tutt of bristles. The advantages of my contruction are l that the bristle `block will last indefinitely as there is no chewiing` up resulting` from the driving in Aof staples as they slip through the bristle holes and are each driven into a suitable plug. Besides this, when a tutt of bristles becomes worn, it with its staple can be pulled out from the front and a new staple w`ith its tutt of bristles can be driven into the old plug. rlhis process can be repeated until the plug wears out. When one or more'plugs have worn out, the Staples can be withdrawn' therefrom, the back plate of the brush, ir' one is used, can be removed,

what is known as dabbing brushes used with combing machines as with such brushes the wear comes mostly on certain parts thereof, andsuch parts must be frequently replaced.

ln the drawings, Figure l is a perspective view of a vdabbing brush or comb brush. Fig. 2 is a sectional view of the bristle block thereo'lI showing Vthe holes, some with plugs in place and some without.r Fig. Sis a sectional view of the bristle block with a back plate in place, the whole being upside down and in the position it is in when the tuft staples-are being driven into place. Fig. 4 is an elevation partly in section of a hand brush with a metal back plate. Figs. 5 and 6 are sectional details showing dill'erent forms of stops which can be used in the bristle holes without interfering with the driving of the staples.

A represents a bristle block with substantially parallel surfaces 10 and l1. 10, I will call the front and ll the back. Through block A, l bore a pluralitv of holes B each- .13 of veach hole B, l place, or preferably drive, a plug such as C until it is stopped by the stop ll andl preferably make each plug of such length that its head will be flush with the back 1l of the bristle block.

l, prefer to make the bristle block Oie/some ber orl hard, close grained wood, while l prefer to make the plugs of some relatively soft material into which a staple can readily be driven and of such character that it will retain the staple in place under ordinary conditions. A plug of soft wood is suitable 4for this purpose.

E, E vrepresent tufts of bristles each of which is looped through a staple such as F in a well known manner. Each staplecarrying a tutt is passed into and through ths` part 12 ot a yhole B and the. staplel*1 is' shard, ldurable material such as aluminum,

driven into a plug C as shown in the drawings.

In a dabbing brush such as shown in Figs. l, 2 and 3, the lock block H attached to bristle block A at the back by means of bolts 20 and nuts 21 serves as a back plate to prevent the plugs C from being forced out through the back. To prevent the plugs being forced back into the bolt slot 22, I make a shallow slot 23 extending beyond the bottom thereof on the inside and in this slot I insert a plate 24` of thin sheet metal as show-n by the dotted lines in Fig. l.

A dabbing brush is so used that the bristles are striking continually head on and there is a tendency to force the plugs out through the back. For such brushes, some sort ofl a backplate is quite necessary but for other purposes as for instance for use in a hand brush like that shown in Fig. 4, a bristle block H'could be used with no back plate. However, I prefer in such cases to use a thin metal back plate such as K.

In Fig. 5, I show a bristle hole of which the front part 40 is cylindrical, while the back part 1-ll flares outwardly to prevent the plug 42 of frustum shape from being pulled out at the front.

In Fig. 6, the front part 50 andback part 51 of a bristle hole are of the sarne size and cylindrical but between them is an annular rim 52 Whichserves as a stopfor the staple plug 53. If the bristle tuft E is thick and the opening in stop 52 is a little smaller, a looped part of the tuft will bear on one side of stop 52, while the plug 53 bears on the other side, whereby the whole thing will be locked in place.

As shown in the right hand holes of Fig. l

6 the annular rim 52 may be of the same material as and integral with the bristle copies of this petent may be lobtained for ve cents each, by addressing' the block, or, as shown in the left hand holes,

' the front part 50 and back part 5l of a bris- Vl. In a brush, a bristle block having a plurality of holes which extend therethrough from front to back, each hole adapted to receive a` tuft of bristles from the front and having a stop which projects Inedially thereof, a plurality of removable plugs each of which ts into a hole from the back and rests against a stop, each plug being adapted to have driven therein from the front, a staple to retain a tuft of bristles in its hole.

2. Ina brush, a bristle block having a plurality of holes which extend therethrough from front to back, each'hole adapted to receive a tuft of bristles from the front and having a stop which projects medially thereof, a plurality of removable plugs each of which lits into a hole from the back and rests against a stop, each plug being adapted to `have driven therein from the front, a staple to retain a tuft of bristles in its hole, and a back plate attached to the back of the bristle block.

In testimony whereof I hereto aiiiX my signature.

JOHN T. LORD.

"Gommissioner of Patents,

Washington, D. C. 

